Reach for the Star | GCSE Mathematics

L080: Cumulative checkpoint 6 and feedback

Objective

Apply probability and statistics with earlier number and algebra.

Calculator: Non-calculator core; calculator optional only for checking where labelled.

Visual model for Cumulative checkpoint 6 and feedback
Points route: Connect 2 · Share 2 · Apply 6 · Review 3 · Stretch 2 · Deep Challenge 3. Record your score honestly after you have checked your answer.

Recall

Retrieve the key fact or method needed for cumulative checkpoint 6 and feedback.

Core practice

A class interval width 6 has frequency 27. Find density, then expected frequency for width 10 at the same density.

Reasoning

Explain why a single experimental probability estimate may change when more trials are added.

Exam-style

Solve an exam-style problem involving cumulative checkpoint 6 and feedback. Show working, include a check and interpret your answer.

WWW / EBI

Recall & Review: feedback and extension integration

Lesson L080: Cumulative checkpoint 6 and feedback

Objective: Apply probability and statistics with earlier number and algebra.

60-minute structure: 0-7 Connect & Check; 7-14 Share; 14-25 Present/model; 25-44 Apply route choice/practice; 44-52 independent exam-style check; 52-60 Recall & Review, WWW/EBI and next step.

What Went Well (WWW)

I used my working and assessment evidence to identify the exact mathematical step that was secure and the specific misconception that needs attention.

Even Better If (EBI)

I will correct one precise step, explain why the correction works and complete a fresh delayed question without the original scaffold.

Stretch and deep challenge

Stretch: A class interval width 6 has frequency 27. Find density, then expected frequency for width 10 at the same density.

Deep challenge: Explain why a single experimental probability estimate may change when more trials are added.